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21030 Cornerstone Dr, Walnut, CA 91789 Property Records

Los Angeles County property record for 21030 Cornerstone Dr, Walnut, CA 91789 · Last verified August 2026

Property Highlights

Property TypeResidential > Condominium / Townhouse > Condominium
Bedrooms4 Beds
Bathrooms3 Baths
Architecture StyleCondo/Apartment
Year BuiltBuilt 2018
Square Footage1,830 sqft Living Area
Last Sale$750,000 (2021)
Tax Bill$10,107.00 (2025)

Property Details

APN / Parcel Number

Primary APN8720-047-093

Interior

Bedrooms4 Beds
Full Baths3 Baths
Building Area1,830 sqft Living Area

Exterior

Year BuiltBuilt 2018
Effective Year BuiltEffective 2018
Architectural StyleCondo/Apartment Style
Construction TypeWood Construction

Utilities and HVAC

Cooling SystemHVAC Cooling
Heating SystemCentral Heating

Location & Zoning

Street Address21030 CORNERSTONE DR
CityWALNUT
StateCA
Zip91789-2571
Property UsageResidential Property Usage
TypeResidential > Condominium / Townhouse > Condominium
Legal DescriptionTR=73294 LOT 43 PH 2 CONDO UNIT 52 (AIRSPACE AND 1/9 INT IN COMMON AREA)
Legal SubdivisionGALLERY AT CORNERSTONE
Legal Tract73294
Legal Block2
Legal Lot Number43
JurisdictionLOS ANGELES CA
Minor Civil DivisionEAST SAN GABRIEL VALLEY
Census Blockgroup2
Census Block2011
Census Tract403402

Owner

Source: Los Angeles County records · APN 8720-047-093

Assessment roll updated May 21, 2026 · Last verified August 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record2 Individual Names on File
Mailing Address23900 SAPPHIRE CANYON RD, DIAMOND BAR, CA 91765-1140
Owner TypeOwner is an Individual, Couple or Unincorporated Entity

Deeds, Mortgages & Sale History

DateDocument
Apr 09, 2021Intrafamily Transfer, Transfer
STEWART TITLE, STEWART TITLE OF CA INC
Apr 09, 2021Grant Deed, Transfer
STEWART TITLE, STEWART TITLE OF CA INC
Apr 09, 2021Intrafamily Transfer, Transfer
STEWART TITLE, STEWART TITLE OF CA INC
Apr 10, 2019Deed of Trust, Mortgage · Conventional Mortgage
US BANK NA

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleApr 09, 2021 · Amount on Record
Deed SaleApr 09, 2021 · Amount on Record
Prior SaleMay 22, 2017 · Amount on Record
Deed Doc Number2021561613
Prior Transfer DateMar 16, 2021
Prior Transfer Doc0000561611
Record RefreshedSep 20, 2026

April 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionLOS ANGELES CA
Recording DateApr 09, 2021
Property Address21030 CORNERSTONE DR, WALNUT, CA 91789-2571
Document Number0000561611
Map ReferenceMB 1390 PG 37-44
Instrument DateMar 16, 2021
Instrument21-0561611
Transaction TypeTransfer
Record UpdatedSep 22, 2021
Title CompanySTEWART TITLE, STEWART TITLE OF CA INC

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address23900 SAPPHIRE CANYON RD, DIAMOND BAR, CA 91765-1140

April 2021: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionLOS ANGELES CA
Recording DateApr 09, 2021
Property Address21030 CORNERSTONE DR, WALNUT, CA 91789-2571
Document Number0000561613
Map ReferenceMB 1390 PG 37-44
Instrument DateFeb 19, 2021
Instrument21-0561613
Transaction TypeTransfer
Record UpdatedSep 22, 2021
Title CompanySTEWART TITLE, STEWART TITLE OF CA INC

Transaction

AmountAmount Recorded
Tax$0.00
Amount AccuracyRounded Values by County
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants
Address23900 SAPPHIRE CANYON RD, DIAMOND BAR, CA 91765-1140

April 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionLOS ANGELES CA
Recording DateApr 09, 2021
Property Address21030 CORNERSTONE DR, WALNUT, CA 91789-2571
Document Number0000561612
Map ReferenceMB 1390 PG 37-44
Instrument DateFeb 16, 2021
Instrument21-0561612
Transaction TypeTransfer
Record UpdatedSep 22, 2021
Title CompanySTEWART TITLE, STEWART TITLE OF CA INC

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address21030 CORNERSTONE DR, WALNUT, CA 91789-2571

April 2019: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionLOS ANGELES CA
Property Address21030 CORNERSTONE DR, WALNUT, CA 91789-2571
Transaction TypeMortgage
Record UpdatedFeb 05, 2021

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0000314344
DateApr 10, 2019
Instrument19-0314344
Lender
NameUS BANK NA
TypeBank
AddressOWENSBORO, KY 42301
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term360 Months
DueApr 01, 2049

Tax Assessment & Valuation

Source: Los Angeles County records · Assessment roll updated May 21, 2026 · Last verified August 2026

Property Jurisdictions

TypeName
StateCalifornia
CountyLos Angeles County
MunicipalityWalnut City
Unified School DistrictWalnut Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Assessed value is set for property tax purposes and is not a market price estimate.

YearTax BillAssessed Value
2025$10,107.00 (+7.77%)$811,821 (+4.04%) Land $471,723 Building $340,098
2023$9,378.00 (+2.12%)$780,299 Land $453,406 Building $326,893
2022$9,183.00

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